JPH0755755Y2 - Magnetic head drive - Google Patents
Magnetic head driveInfo
- Publication number
- JPH0755755Y2 JPH0755755Y2 JP6473089U JP6473089U JPH0755755Y2 JP H0755755 Y2 JPH0755755 Y2 JP H0755755Y2 JP 6473089 U JP6473089 U JP 6473089U JP 6473089 U JP6473089 U JP 6473089U JP H0755755 Y2 JPH0755755 Y2 JP H0755755Y2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic head
- arm
- reinforcing plate
- magnetic
- read
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は磁気ディスク装置の磁気ヘッド駆動装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a magnetic head drive device for a magnetic disk device.
磁気ディスク装置の磁気ヘッド駆動装置では、磁気ディ
スクに書込まれた磁気信号は磁気ヘッドで読取られ、電
気信号に変えられ、電気信号増幅用集積回路（以下、リ
ードライトICと称す）により増幅され電気回路によりデ
ータに変換される。リードライトICは磁気ヘッドからの
微弱な電気信号を増幅するため、途中で電気信号に侵入
するノイズの影響を少なくする理由から磁気ヘッドにで
きる限り近い場所に設置することが望ましい。In a magnetic head drive device of a magnetic disk device, a magnetic signal written on a magnetic disk is read by a magnetic head, converted into an electric signal, and amplified by an electric signal amplifying integrated circuit (hereinafter referred to as a read / write IC). It is converted into data by an electric circuit. Since the read / write IC amplifies a weak electric signal from the magnetic head, it is desirable to install the read / write IC as close to the magnetic head as possible in order to reduce the influence of noise that enters the electric signal on the way.
このため従来の磁気ディスク装置では、第３図に示すう
に、リードライトIC16、チップ抵抗17等が実装されたフ
レキシブルプリントサーキット（以下、FPCと称す）14
が、磁気ディスク11に対向して設けられた磁気ヘッド12
を保持しているヘッドアーム13に補強板15を介して設置
されていた。Therefore, in the conventional magnetic disk device, as shown in FIG.
However, the magnetic head 12 provided facing the magnetic disk 11
Was installed on the head arm 13 holding the through the reinforcing plate 15.
ところが、近年、磁気ディスク装置の小型化および高記
録容量化の要求が高まり、磁気ヘッド駆動装置の小型化
により、ベッドアームのリードライトIC実装部のスペー
スが少なくなり、チップ抵抗等が実装するだけで、リー
ドライトICが実装できなくなり、あるいは高記録容量化
により磁気ディスクおよび磁気ヘッドの数が増加し、複
数のリードライトICが必要となったため、打４図に示す
ように、磁気ヘッド12から遠く離れた位置にリードライ
トIC16が設置されていた。However, in recent years, there has been an increasing demand for miniaturization of magnetic disk devices and higher recording capacities, and due to the miniaturization of magnetic head drive devices, the space for the read / write IC mounting portion of the bed arm has been reduced, and chip resistors and the like have to be mounted. Since the read / write IC cannot be mounted or the number of magnetic disks and magnetic heads has increased due to the increase in recording capacity, a plurality of read / write ICs are required. The read / write IC16 was installed far away.
上述した従来の磁気ヘッド駆動装置は、磁気ディスクの
小型化等により、アームのFPC設置スペースが少なくな
り、磁気ヘッドから得られる微弱な電気信号を増幅する
リードライトICがFPCを介し、磁気ヘッドから離れた磁
気ディスク装置内部に設置しなければならないため、磁
気ヘッドが駆動された際、磁気ヘッドとリードライトIC
間のFPC部で屈曲運動が生じ、微弱な電気信号にノイズ
が侵入して、データの読出し、書込み動作時にエラーが
発生しやすくなり、磁気ディスク装置の信頼性が低下す
るという欠点がある。In the conventional magnetic head drive device described above, the FPC installation space of the arm is reduced due to the miniaturization of the magnetic disk, etc., and the read / write IC that amplifies the weak electric signal obtained from the magnetic head passes through the FPC and from the magnetic head. Since it must be installed inside a separate magnetic disk device, when the magnetic head is driven, the magnetic head and read / write IC
There is a drawback that bending motion occurs in the FPC portion between them, noise is introduced into a weak electric signal, an error is likely to occur at the time of data read / write operation, and the reliability of the magnetic disk device is deteriorated.
本考案の目的は、微弱な電気信号にノイズが侵入するこ
とがなく、したがってデータの読出し、書込み動作時に
エラーが発生することがない磁気ヘッド駆動装置を提供
することである。An object of the present invention is to provide a magnetic head driving device in which noise does not enter a weak electric signal, and thus an error does not occur during a data read / write operation.
本考案の磁気ヘッド駆動装置は、少なくとも１枚の回転
する磁気ディスクと、各磁気ディスクに対向して設けら
れた磁気ヘッドと、該磁気ヘッドを保持するアームと、
補強板と、該補強板を介して該アームの側面に固定され
たフレキシブルプリントサーキットと、前記磁気ヘッド
を駆動するモータとを有する磁気ヘッド駆動装置におい
て、補強板が互いに連ね合わされた２枚の補強板からな
り、フレキシブルプリントサーキットは補強板の部分が
折り曲げられて各補強板の面に取付けられており、そし
て補強板は、前記アームと対向するフレキシブルプリン
トサーキットの部分にも電子部品が実装可能なように前
記アームの側面に間隙をもって固定されている。The magnetic head driving device of the present invention comprises at least one rotating magnetic disk, a magnetic head provided to face each magnetic disk, and an arm for holding the magnetic head.
In a magnetic head drive device having a reinforcing plate, a flexible printed circuit fixed to the side surface of the arm via the reinforcing plate, and a motor for driving the magnetic head, two reinforcing plates in which the reinforcing plates are connected to each other The flexible printed circuit is made of a plate, and the reinforcing plate portion is bent and attached to the surface of each reinforcing plate, and the reinforcing plate can also have electronic parts mounted on the portion of the flexible printed circuit facing the arm. Thus, it is fixed to the side surface of the arm with a gap.
アームと対応するFPCの部分にリードライトIC等を実装
することにより、リードライトICを磁気ヘッドから離れ
た位置に実装することによって生じる問題がなくなる。By mounting the read / write IC or the like on the portion of the FPC corresponding to the arm, the problem caused by mounting the read / write IC at a position away from the magnetic head is eliminated.
次に、本考案の実施例について図面を参照して説明す
る。Next, an embodiment of the present invention will be described with reference to the drawings.
第１図は本考案の一実施例の磁気ヘッド駆動装置の機構
部分と磁気ディスクを示す斜視図、第２図は第１図のFP
C部の分解図である。FIG. 1 is a perspective view showing a mechanical portion and a magnetic disk of a magnetic head driving device according to an embodiment of the present invention, and FIG. 2 is a FP of FIG.
It is an exploded view of the C section.
積層された複数の磁気ディスク１にはそれぞれ磁気ヘッ
ド２が実装されている。磁気ヘッド２はヘッドアーム３
によって保持され、磁気ディスク１の上を移動する。A magnetic head 2 is mounted on each of the stacked magnetic disks 1. The magnetic head 2 is the head arm 3
It is held by and moves on the magnetic disk 1.
磁気ディスク１に記録された磁気信号は磁気ヘッド２に
より電気信号に変換され、第２図に示すように,FPC4に
実装されているチップ抵抗７を介して、リードライトIC
6により増幅される。FPC4は２枚の補強板５−A,5−Ｂを
介して、アーム３の側面に設けられた４個の突起3aに取
付けられ、補強板５−Ａ側からFPC折り曲げ部４−Ａで
折り曲げられ補強板５−Ｂの側に延びており、補強板５
−Ａ側にはチップ抵抗７が補強板５−Ｂ側にはリードラ
イトIC6が実装されている。ここで、FPC4と補強板５−
A,5−Ｂのアーム３への取付けは、第２図で明らかなよ
うに、まず、FPC4を補強板５−A,5−Ｂに取付けた後、
補強板５−Ａと５−Ｂを互いに対向するように折り曲げ
重ね合わせて第１図のようにアーム３に接合させること
により行なわれる。このようにするのは、FPC4単独で折
り曲げるのは難かしいためである。The magnetic signal recorded on the magnetic disk 1 is converted into an electric signal by the magnetic head 2 and, as shown in FIG. 2, through the chip resistor 7 mounted on the FPC 4, the read / write IC
Amplified by 6. The FPC 4 is attached to the four protrusions 3a provided on the side surface of the arm 3 via the two reinforcing plates 5-A and 5-B, and is bent from the reinforcing plate 5-A side at the FPC bending portion 4-A. And extends to the side of the reinforcing plate 5-B,
A chip resistor 7 is mounted on the −A side and a read / write IC 6 is mounted on the reinforcing plate 5-B side. Here, FPC4 and reinforcing plate 5-
To attach A, 5-B to the arm 3, as is clear from FIG. 2, first attach the FPC 4 to the reinforcing plate 5-A, 5-B, and then
The reinforcing plates 5-A and 5-B are bent and overlapped so as to face each other and joined to the arm 3 as shown in FIG. This is done because it is difficult to fold FPC4 alone.
このように、リードライトIC6が、磁気ヘッド２に近い
場所に設置されているので、電気信号にノイズが侵入し
て読出し，書込み動作時にエラーが発生することがな
い。As described above, since the read / write IC 6 is installed near the magnetic head 2, noise does not enter the electric signal and an error does not occur during the read / write operation.
本実施例によればアーム３のFPC4接続部が従来の約半分
で済み、その分磁気ディスク装置を小型化できる。According to this embodiment, the FPC4 connection portion of the arm 3 is about half that of the conventional one, and the magnetic disk device can be miniaturized accordingly.
なお、突起3aの代りに、アーム３に溝を設けてFPC4とア
ーム３の間の間隙を確保するようにしてもよい。Instead of the protrusion 3a, a groove may be provided in the arm 3 to secure a gap between the FPC 4 and the arm 3.
以上説明したように本発明は、FPC4の補強板の部分を延
長して補強板の両面に取付け、補強板をアームと隙間を
もって設置して、補強板の両側にリードライトICやチッ
プ抵抗が実装できる構造にすることにより、磁気ヘッド
に近い場所にリードライトICが設置され、電気信号にノ
イズが侵入して読出し、書込み動作時にエラーが発生す
ることなくなり、磁気ディスク装置の信頼性を高めら
れ、またFPCのアームへの接続部を小さくして磁気ディ
スク装置をその分小型化できるという効果がある。As described above, according to the present invention, the reinforcing plate portion of the FPC4 is extended and attached to both sides of the reinforcing plate, the reinforcing plate is installed with a gap with the arm, and the read / write IC and the chip resistor are mounted on both sides of the reinforcing plate. By making it possible, the read / write IC is installed near the magnetic head, noise does not intrude into the electric signal, and errors do not occur during reading and writing operations, improving the reliability of the magnetic disk device, Further, there is an effect that the magnetic disk device can be downsized by reducing the connecting portion of the FPC to the arm.
第１図は本考案の一実施例の磁気ヘッド駆動装置の機構
部分と磁気ディスクを示す斜視図、第２図は第１図のFP
C部の分解図、第３図、第４図は従来の磁気ヘッド駆動
装置の機構部分と磁気ディスクを示す図である。 １…磁気ディスク、２…磁気ヘッド、３…アーム、3a…
突起、４…FPC、４−Ａ…FPC折り曲げ部、５−A,5−Ｂ
…補強板、６…リードライトIC、７…チップ抵抗。FIG. 1 is a perspective view showing a mechanical portion and a magnetic disk of a magnetic head driving device according to an embodiment of the present invention, and FIG. 2 is a FP of FIG.
FIGS. 3 and 4 are exploded views of the portion C, showing the mechanical portion and the magnetic disk of the conventional magnetic head driving device. 1 ... Magnetic disk, 2 ... Magnetic head, 3 ... Arm, 3a ...
Protrusion, 4 ... FPC, 4-A ... FPC bent portion, 5-A, 5-B
... Reinforcement plate, 6 ... Read / write IC, 7 ... Chip resistance.
Claims (1)
と、各磁気ディスクに対向して設けられた磁気ヘッド
と、該磁気ヘッドを保持するアームと、補強板と、該補
強板を介して該アームの側面に固定されたフレキシブル
プリントサーキットと、前記磁気ヘッドを駆動するモー
タとを有する磁気ヘッド駆動装置において、 前記補強板が互いに連ね合わされた２枚の補強板からな
り、前記フレキシブルプリントサーキットは前記補強板
の部分が折り曲げられて各補強板の面に取付けられてお
り、そして前記補強板は、前記アームと対向するフレキ
シブルプリントサーキットの部分にも電子部品が実装可
能なように前記アームの側面に間隙をもって固定されて
いることを特徴とする磁気ヘッド駆動装置。1. At least one rotating magnetic disk, a magnetic head provided to face each magnetic disk, an arm for holding the magnetic head, a reinforcing plate, and the arm via the reinforcing plate. A magnetic head driving device having a flexible printed circuit fixed to a side surface of the magnetic head and a motor for driving the magnetic head, wherein the reinforcing plate is composed of two reinforcing plates connected to each other, The plate portion is bent and attached to the surface of each reinforcing plate, and the reinforcing plate has a gap on the side surface of the arm so that electronic parts can be mounted also on the portion of the flexible printed circuit facing the arm. A magnetic head drive device characterized in that the magnetic head drive device is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6473089U JPH0755755Y2 (en) | 1989-06-02 | 1989-06-02 | Magnetic head drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6473089U JPH0755755Y2 (en) | 1989-06-02 | 1989-06-02 | Magnetic head drive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH035296U JPH035296U (en) | 1991-01-18 |
| JPH0755755Y2 true JPH0755755Y2 (en) | 1995-12-20 |
Family
ID=31595934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6473089U Expired - Lifetime JPH0755755Y2 (en) | 1989-06-02 | 1989-06-02 | Magnetic head drive |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0755755Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7039428B2 (en) | 2018-09-14 | 2022-03-22 | 株式会社東芝 | Actuator assembly of disk device and disk device equipped with it |
| JP7039431B2 (en) * | 2018-09-19 | 2022-03-22 | 株式会社東芝 | A wiring board unit for a disk device, an actuator assembly for a disk device, and a disk device including the same. |
-
1989
- 1989-06-02 JP JP6473089U patent/JPH0755755Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH035296U (en) | 1991-01-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |